Internal-combustion engine.



W. F. HOSHEL. INTERNAL COMBUSTION ENGINE.

APPLICATION [ILED AUG.28.1916.

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INTERNAL COMBUSTION ENGINE.

APPLICATION FILED AUGJB. I916.

Patentedfiept. 11, 1917/.

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tdTATEd PATENT @FFTGE WILLIAM 1E, HOSHEL, OF THREE RIVERS, MICHIGAN,ASSIGNOR T0 SHEFFIELD CAR COMPANY, OF THREE RIVERS, MICHIGAN.

INTERNAL-COMBUSTION. ENGINE.

Specification of Letters Yatent.

Patented Sept. 11, 19d '2' Application filed August 28, 1916. Serial No.117,247.

To all whom it may concern:

Be it known that I, WILLIAM F. HOSHEL,

a citizen of the United States, residing at Three Rivers, county of St.Joseph, State of Michigan, have invented certain new and usefulImprovements in Tnterna1Gombus-' tion engine an improved fuel feed meanswhich is efficient and at the same time very simple in structure and notlikely to become disarranged in use.

Further objects, and objectsrelating to structural details, willdefinitely appear from the detailed description to follow.

I accomplish the objects of my invention by the devices and meansdescribed in the following specification. The invention is clearlydefined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearlyillustrated in the accompanying drawing, forming a part of thisspecification, in which:

Figure I is a detail view mainly in central section of a structureembodying my improvements.

Fig. H is a similar view of a slightly modified structure embodying myimprovements.

Fig. HT is an enlarged detail section on line 3-3 of Fig. 11.

In the drawing similar reference numerals refer to similar parts in bothviews.

Referring to the drawing, 1 have shown my improvements embodied in atwo-cycle en no for which they are especially desirable and as I havedesigned and adapted them for the market.

The cylinder 1 is mounted on the crank case 2 which, in the structureillustrated, constitutes the compression chamber of the engine. Thecylinder is provided with an inlet port 3, an exhaust port 4, and acompression chamber inlet port 5. The crank case opens into the cylinderso that the piston 6 constitutes or serves as a compression pumpplunger, as is well understood in twocycle engine practice. The exhaustport 4: and the inlet port 3 of the cylinder are located so as to beuncovered or opened when the piston is at the end of its instroke, in

which position the piston covers the compression chamber inlet port 5.When the piston is at the end of its outstroke the inlet port 3 andexhaust port l are closed by the piston and the compression chamberinlet port 5 is uncovered or opened.

The compression chamber is connected to the cylinder inlet port 3 by thepassage 7 so that on the instroke of the piston the mixture iscompressed in the compression chamber and forced through the passage 7into the cylinder as soon as the port 3 is opened. The exhaust port ispreferably slightly larger than the inlet port so that it is openedsomewhat in advance of the inlet port to allow the escape of part of theexhaust gases and the incoming charge effectively drives out theremainder of the gases. The piston is provided with a deflector 8directing the incoming gases toward the outer end of the cylinder.

The port 4 is provided with an exhaust pipe 9. An elbow shaped inletpassage member 10 is provided for the port 5, the inlet passage beingprovided with a throttle 11 which, in the structure illustrated, is inthe form of a rotating damper valve. A fuel nozzle 12 is arrangedthrough the elbow or angle of the passage member 10 with its tipcentrally of the Venturi restriction 13 of the passage.

The discharge 1d of the fuel nozzle is in the form of a conical recess.The nozzle is provided with a needle regulating valve 15, the stem ofwhich projects at the outer end of the nozzle'for convenience inadjustment. The nozzle is connected by the pipe 16 with the fuelreservoir 17. The pipe 16 has an extension 18 depending to the bottom ofthe reservoir. The pipe or conduit 16 is pro vided with a check valve19. With the parts thus arranged the operation of the device is asfollows:

When the piston moves on its outstroke it creates a partial vacuum inthe compression chamber and when it has reached the end of its outstroketheport 5 in the compression chama ber is uncovered and the air rushesinthrough the intake passage into the compression chamber. The suctionand inspirating eflect on the nozzle creates a suction in the feed pipe16 and draws the fuel from the fuel tank. The needle valve regulates theamount of fuel drawn or delivered and owing to the q disposition of theneedle valve relative to the nozzle opening and the form of the nozzledischarge the fuel is atomized as it is discharged into the passage andis drawn with the air into the compression chamber in the form of avapor. The valve 19 checks the return of the fuel so that the feed afterthe engine is started is uniform and even, the fuel being effectivelydrawn from the reservoir. When the piston starts on its instroke theport 5 is closed and the charge compressed in the compression chamberand 20 is delivered therefrom into the cylinder as soon as the port 3 isopened, as has been described.

In the modification shown in Fig. II, the inlet passage 20 is disposedthrough the exhaust passage 21 so as to be heated thereby.

The nozzle 22 in this embodiment is arranged through the w all of theexhaust passage to deliver into the inlet passage at a point surroundedby the exhaust passa e. go The fuel feed pipe 23 is connected with t efuel reservoir '24: substantially as in the structure described.

I preferably provide the inlet passage 20 with a priming pipe 25delivering at 26.

The inlet passage 20 is provided with a rotary throttle valve 27 whichrotates in the cylindrical bearing seat 28. The valve 27 comprises topand bottom disks 29 and 30 respectively, connected by the post 31 4g andthe closure 32 which latter is adapted to close either the end of thepriming ipe 25 or the air inlet opening 33 depen ing upon its position.The closure is cut away at 35 so that it may be turned to open thepriming pipe 25 and at the same time partially open the inlet opening33.

When fuels, such as kerosene, are used it is desirable to use gasoleneor other readily vaporizing fuel for priming or starting the engine.

My improved internal combustion engine is very simple and economical instructure and at the same time is very efficient, enabling the use ofkerosene as a fuel.

I have not attempted to illustrate or describe all the modifications oradaptations contemplated by me as I believe the disclosure made willenable those skilled in the art to which my invention relates to embodyor adapt the same as may be desired.

Having thus described my invention, what I claim as new and desire tosecureby Letters Patent, is:

1. In an internal combustion engine, the

combination of a cylinder provided with inlet and exhaust ports and acompression chamber inlet port, a crank case adapted as a compressionchamber, a passage connecting said compression chamber to said cylinderinlet port, a piston constituting a pump plunger for said compressionchamber, said compression chamber inlet port bein closed by the pistonwhen it is at the en of its instroke and said cylinder inlet and exhaustports are open, and open when the piston is at the end of its outstroke,and said cylinder inlet and exhaust ports are closed thereby, anelbow-shaped inlet passage member delivering to said compression chamberinlet port and having a Venturi restriction at its inlet port end, afuel nozzle disposed through the elbow of said inlet passage member withits tip centrally in the Venturi restriction thereof, the discharge ofsaid nozzle being conical, a needle valve for said nozzle, a fuelreservoir, a conduit connecting said fuel reservoir tosaid nozzle, acheck valve for said conduit, the fuel being drawn past said valve tosaid nozzle by the suction or inspirating impulses of the compressionchamber, and a throttle valve for said inlet passage member.

2. In an internal. combustion engine, the combination of a cylinderprovided with inlet and exhaust ports and a compression chamber inletport, a crank case adapted as a compression chamber, a passageconnecting said compression chamber to said cylinder inlet port, apiston constituting a pump plunger for said compression chamber, saidcompression chamber inlet port bein closed by the piston when it is atthe end 0% its instroke and said cylinder inlet and exhaust ports areopen, and open when the piston is at the end of its outstroke, and saidcyl-- inder inlet and exhaust ports are closed thereby, an inlet passagemember deliverin to said compression chamber inlet port and having avVenturi restriction at its inlet ort end, a fuel nozzle disposed withits ti centrally in the Venturi restriction thereo the discharge of saidnozzle being conical, a regulatingvalve for said nozzle, a fuelreservoir, a conduit connecting said fuel reservoir to said nozz'le,acheck valve for said conduit, the fuel being drawn past said valve tosaid nozzle by the suction or inspirating impulses of the compression Ychamber, and a throttle valve for said inlet passage member.

3. In an internal combustion engine the combination of a cylinderprovided wit inlet and exhaust ports and a compression chamber inletport, a compression chamher, a passage connectmg said compressionchamber to said cylinder inlet port, a piston, said compression chamberinlet port being closed by the piston when it is at the end of itsinstroke and said cylinder inlet and exhaust ports are open, and openwhen the piston is at the end of its outstroke, said cylinder inlet andexhaust ports being then closed thereby, an elbow-shaped inlet passagemember delivering to said compression chamber inlet portand having aVenturi restriction at its inlet port end, a fuel nozzle disposedthrough the elbow of said inlet passage member with its tip in theVenturi restriction thereof, the dischar e' of said nozzle beingconical, a needle v ve for said nozzle, a fuel reservoir, a pipeconnect' said fuel reservoir to said nozzle, a ch dfi valve for saidpipe, the fuel being drawn past said valve to said nozzle by the suction5 or inspirating impulses of the compression chamber, and a throttlevalve for said inlet passage member. l

In witness whereof, l[ have hereunto set my hand and seal in thepresence of two 20 witnesses.

wILmAM'F. nosnnn a a] Witnesses: I R. A, RENSENHOUBE V. J. Crimean.

